Thumb stylus



FIG. 1 is an top isometric view of a thumb stylus, showing my new design;

FIG. 2 is a bottom isometric view thereof;

FIG. 3 is a left hand view thereof;

FIG. 4 is a right hand view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for a thumb stylus, as shown and described. 